Below method solved my problem:
In ubuntu
Type: sudo vi /etc/mysql/my.cnf
type A to enter insert mode
In the last line paste below two line code:
[mysqld]
sql_mode = STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
Type esc to exit input mode
Type :wq to save and close vim.
Type sudo service mysql restartsudo service mysql restart to restart MySQL.